During the holiday seasons, we tend to produce more waste. For example, we discard more wrapping paper, cards, and shopping bags. Moreover, according to the EPA, each year over 30 million live Christmas trees are sold in North America. Suggest at least five ways to reduce waste at holiday time.
What will be an ideal response?
Examples include:
- Plant and grow a Christmas tree outside and decorate it during the holiday season
- Change Christmas lights to LED lights
- Send e-cards instead of mailing cards
- Reuse wrapping paper
- Exchange useful gifts that could be easily recycled
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Earth’s systems are connected, and a change in one system can influence the entire system. What do we call interactions that amplify the effects of change?
A. Positive feedback loops. B. Negative feedback loops. C. Enmeshment. D. Displacement.
Stratospheric particulates and aerosols stay suspended longer because
A) they are small and there is no mechanism to remove them. B) they are held aloft by the jet streams. C) they are trapped in the tropopause. D) they combine with ozone and are held in chemical bonds.
Passing along some old gardening advice, a neighbor says, "If you want a great garden,
A) keep the fungi and earthworms happy." B) water deeply every day." C) add at least 3 inches of sand and gravel to the soil every year." D) use plenty of pesticides."
Sodium sulfite, Na2SO3(aq), is added to wine as an antioxidant since it reacts with the oxygen of the air to form sodium sulfate, Na2SO4(aq). Which of the following is the balanced equation for this reaction?
A) Na2SO3(aq) + O(g) ? Na2SO4(aq) B) Na2SO3(aq) + 2 O(g) ? Na2SO4(aq) C) 2 Na2SO3(aq) + O2(g) ? 2 Na2SO4(aq) D) Na2SO3(aq) + O2(g) ? Na2SO4(aq)